Elemental is a C++ framework for distributed-memory dense linear algebra that strives to be fast, portable, and programmable. It can be thought of as a generalization of PLAPACK to element-by-element distributions that also makes use of recent algorithmic advances from the FLAME project. Elemental usually outperforms both PLAPACK and ScaLAPACK, however, it heavily relies on MPI collectives so a good MPI implementation is crucial. Both pure MPI and hybrid OpenMP-MPI configurations are supported.
cipra is a simple, TAP-compatible Unit Testing Framework for C++. It's written in 100% standard C++11 and is only a couple of header files, making it easy to include in your C++11 project. TAP, the Test Anything Protocol, is a standard output format for software unit test frameworks which was originally designed for Perl, but can serve other languages. It has a rich number of tools ("harnesses") which parse TAP-formatted output and do useful things with it. TAP, however, is equally human-readable. The name cipra (pronounced /ˈʃi.pɾaː/ "SHEE-prah") comes from the lojban phrase "lo cipra", which means "the test". It is properly written with an initial minuscule "c", even when at the start of a sentence.